San Diego County, San Diego Rat Control Situation:
Hi David, Is a UV blacklight still useful, exterior-wise, if it rains after the rodents leave their urine stains? I am in the process of performing exterior maintenance to better exclude my roof rats. 1) I have a 25 year old cedar shake roof in San Diego California with openings under each shake along the rake edge of the roof at the gable ends of my house. There's no drip edge, i.e. under the shakes I have roofing paper (now somewhat curled) that runs more or less up to and rests right atop the fascia board. Because I have skip sheathing, and since the cross section of a shake is a wedge that is up to one inch at the upper, thick end, this appears to create many huge entry points along the rake edges even though the sheathing is rabbeted into the fascia board. As a result, I'm thinking of getting a UV blacklight to use outside the house to sleuth for urine stains along the upper edge of the gable end shakes and fascia boards. My question is, how easily does the winter rain wash away the urine, rendering this a pointless exercise? 2) I noticed a new product called "rat-out gel" and was thinking of applying it along the rake edges mentioned above. Or, maybe I should just buy many rolls of X-Clude and use that instead. Or maybe both. Any comment? Thanks very much for your website, Doug
My response: First off, I do not have experience using UV lights to detect rat urine. But I do suspect that rain will severely limit the effectiveness of this approach. I have never heard of Rat-Out Gel or XClude, but I typically stick to physical barriers rather than repellent type devices. If your roof makes this impossible, you might have a tough time keeping the rats out.
San Diego Rat Control Tip of The Week
What To Do If There Is A Nest Of Rats In Your Attic
Being a commensal rodent, rats live and thrive very well in human settlements. When you have them in your home, these pests will most likely harbor in your attic and make it their nesting place. If you have rats nesting in your attic, the first sign you will notice is scratching and scurrying sound in the ceiling of your home at night.
Having confirmed that there are rats nesting in your attic, you might be thinking of what to do and the best way to handle the situation. Right here, we will be sharing all you need to know about what to do when you have rats nesting in your attic.
1. Attic Inspection
After noticing some unusual sounds in your attic, the first thing you need to do is to inspect your home to confirm if there are rats nesting in your attic or not. While inspecting your home, you need to also determine how the rats got into your attic and where they are nesting.
2. Repair The Rat Entry Holes
If you are lucky enough to find their entry holes, you need to seal them before doing any other thing. Sealing them off prevents other rats from entering your attic after you have removed all the rats already nesting there.
3. Remove The Rats
After the sealing and the repair job, the next thing for you to do is to remove the rats. To do this, all you have to do is set as many snap traps as possible in different locations in your attic. To increase your chances of trapping more rats, you need to bait the snap trap with baits like peanut butter or any other dry nut. This will help attract the rats to the traps.
4. Clean The Attic
Finally, you need to clean up your attic with a strong disinfectant, to ensure that you are safe from bacteria and other pathogens deposited by the rats.
